Best Self-hosted Alternatives to Google Keep

AppFlowy is an open-source, privacy-focused collaborative workspace designed as an alternative to Notion. It combines rich documents, databases, boards, and AI-assisted tools across desktop, mobile, and web clients while keeping a local-first data model.

Key Features

• Rich editor with many block/content types (code blocks, equations, embeds, toggles) and customizable templates
• Database views: grid, board (kanban), calendar and custom views for structured data
• Hybrid architecture: Flutter-based native clients and a Rust core handling business logic and persistence
• Local-first storage using SQLite plus CRDT-based collaboration layers and optional cloud sync
• Built-in AI features (AI chat and writers) with support for local and external models and model selection
• Cross-platform distribution: native macOS, Windows, Linux, iOS and Android clients; web client for browser access
• Extensible plugin and template ecosystem with community-contributed Flutter packages and editor plugins

Use Cases

• Personal knowledge management and note-taking with structured databases and rich content
• Team collaboration for project documentation, shared wikis, and kanban-based task tracking
• Publishing documentation or lightweight sites and using AI to generate summaries, drafts, or takeaways

Limitations and Considerations

• Feature parity with established commercial products is still evolving; some advanced Notion features may be missing or in-progress
• Web deployment and self-hosted web setup can require configuration (CORS, environment variables) and has had community-reported friction during installation
• Commercial/cloud features and enterprise-grade services are shipped separately (cloud offerings and paid tiers); community and plugin ecosystems are active but still maturing

AppFlowy is best suited for users who want control over their data, cross-device native experiences, and an open-source, extensible workspace. It is actively developed with a thriving community, and feature coverage continues to expand through releases and community contributions.

Memos is an open-source, privacy-first note-taking service designed for capturing short notes and building a lightweight knowledge base. It is built for fast, local-first writing, with your data stored on your own infrastructure and no built-in tracking.

Key Features

• Markdown-first editor with plain-text oriented storage
• Fast, minimal UI optimized for quick capture and retrieval
• Organize notes with tags and basic structuring for knowledge management
• Share and publish selected notes for others to view
• REST and gRPC APIs for integrating with developer workflows
• Multiple database options, including SQLite, MySQL, and PostgreSQL
• Simple deployment options including Docker, prebuilt binaries, and Kubernetes

Use Cases

• Personal “memo hub” for daily notes, journaling, and quick idea capture
• Team wiki or lightweight internal knowledge base
• Developer logbook for snippets, debugging notes, and infrastructure runbooks

Memos is a good fit when you want a fast, distraction-free notes app that is easy to run and maintain, while keeping full control over your data. Its API access and simple deployment make it practical for both individuals and small teams.

Joplin is a free and open source note-taking and to-do application designed for keeping your data private while staying available across devices. It is offline-first and can sync using end-to-end encryption via multiple backends, including WebDAV and Nextcloud.

Key Features

• Organize notes in notebooks with tags and powerful full-text search
• Markdown-based notes with optional rich-text editing
• End-to-end encryption (E2EE) for sync to protect note contents
• Sync with multiple providers and standards (including WebDAV-compatible services)
• Web Clipper extension to save web pages or screenshots as notes
• Import from Evernote (ENEX) and import/export Markdown
• Customization via plugins, themes, and an extension API
• Available on desktop and mobile, plus a terminal application

Use Cases

• Personal knowledge management across devices with encrypted synchronization
• Migrating from Evernote and consolidating notes into an open format
• Capturing research and articles via web clipping for offline reading

Joplin fits individuals and teams that want flexible note organization, broad sync options, and strong privacy controls. Its open formats and extensibility make it a solid long-term notes and knowledge base solution.

SiYuan is a privacy-focused, open-source personal knowledge management application that organizes content as editable blocks and supports Markdown WYSIWYG. It emphasizes local-first storage with optional end-to-end encrypted synchronization and offers desktop, mobile and Docker deployments.

Key Features

• Block-based editor with block-level references and two-way links for fine-grained connections.
• Markdown WYSIWYG editing plus large-document (million-word) editing with dynamic loading.
• Built-in database/table view, SQL query embeds and template/snippet support.
• Spaced-repetition flashcards and AI-assisted writing/Q&A via external model APIs.
• OCR support (Tesseract), PDF annotation linking and rich embeds (charts, flowcharts, math).
• Multiple sync options including end-to-end encrypted sync, S3 and WebDAV backends, and Docker deployment.

Use Cases

• Personal knowledge management and research notes with block-level linking for networked thought.
• Publishing and documentation workflows where notes are exported to standard Markdown, HTML or platform-targeted formats.
• Shared team knowledge bases or a self-hosted notes server accessible via Docker and mobile/desktop clients.

Limitations and Considerations

• Some member-only features require payment; the project notes that some capabilities are gated for paid members.
• Community discussions and repository issues have raised concerns about telemetry defaults and the need for careful plugin vetting; administrators should review telemetry and plugin settings for privacy-sensitive deployments.

SiYuan combines a block-first editor model with server-backed features (Docker, APIs, sync) and desktop/mobile clients, making it suitable for users who want a privacy-oriented, extensible PKM system. Its active open-source repository and plugin ecosystem support customization, but administrators should review paid-feature gating and telemetry settings before production use.

Logseq is a privacy-first platform for personal knowledge management built around linked, block-based notes organized as a graph. It supports local-first workflows using Markdown or Org-mode files, with additional options for database-backed graphs and real-time collaboration.

Key Features

• Block-based outlining with bidirectional linking and graph-based navigation
• Local file-based graphs using Markdown and Org-mode for longevity and portability
• Task management features integrated into notes (e.g., TODO workflows and queries)
• Whiteboards for spatial thinking with shapes, connectors, drawings, and embeds
• PDF reading and annotation integrated into the knowledge base
• Plugin and theme ecosystem via a dedicated plugin API
• Optional database-backed graphs with sync and real-time collaboration capabilities

Use Cases

• Personal knowledge base for research notes, study, and writing workflows
• Daily journaling and task tracking with linked context across projects
• Team knowledge sharing and collaborative note-taking (where collaboration is enabled)

Limitations and Considerations

• Database-backed graphs and real-time collaboration features may be in beta/alpha and can carry higher risk of data issues; backups are recommended

Logseq is well-suited for users who want a durable, local-first note system with strong linking and outlining. Its whiteboards, PDF annotation, and extensibility make it flexible for both personal productivity and collaborative knowledge work.

Trilium Notes is a cross-platform note-taking application designed for building large, structured personal knowledge bases. It can be used locally as a desktop app or run as a server to access notes in a browser and synchronize across devices.

Key Features

• Deep hierarchical note tree with cloning (one note can appear in multiple places)
• Rich WYSIWYG editor with Markdown-like autoformat, tables, images, and math
• Code notes with syntax highlighting and dedicated editor
• Full-text search plus fast navigation, hoisting, and command palette-style search
• Note revisions/versioning for review and undo
• Per-note encryption with password-protected sessions
• Web clipper support for saving web content into notes
• Extensibility via attributes, scripting, custom widgets, and built-in REST API
• Multiple note types and visual tools (canvas, Mermaid diagrams, mind maps, relation/note maps)
• Collections for structured workflows (tables, kanban boards, calendar, geomap, presentations)

Use Cases

• Personal or team knowledge base with structured documentation and cross-linked notes
• Research and project organization using tables, kanban boards, diagrams, and saved searches
• Private journaling and sensitive information storage using per-note encryption

Limitations and Considerations

• Uses an SQLite database; sharing the database directly over a network drive is discouraged due to corruption risk
• Not intended as a large-file storage system; synchronization can be unreliable with very large uploads
• No official native mobile app; mobile access is primarily via the web/mobile frontend (PWA)

Trilium Notes combines a strong hierarchical model with powerful search, versioning, and automation features. It is well-suited for users who want an extensible knowledge base that scales to very large collections of notes while keeping control of their data.

La Suite Docs is a collaborative editor for notes, wiki pages, and internal documentation that helps teams turn documents into structured knowledge. It focuses on real-time co-editing, organized pages, and secure sharing.

Key Features

• Real-time collaborative editing powered by CRDT-based synchronization
• Block-based rich-text editor with slash commands and Markdown input
• Granular access control for documents and workspaces
• Subpages to organize content into navigable knowledge structures
• Offline editing with automatic sync when back online
• Export to multiple formats (with optional components depending on licensing)
• Built-in AI actions for rewriting, summarizing, translation, and typo fixing

Use Cases

• Team knowledge base and lightweight internal wiki
• Collaborative meeting notes and project documentation
• Shared writing workspace for public-sector or enterprise teams needing access controls

Limitations and Considerations

• Some export capabilities rely on optional components that may introduce GPL-licensed dependencies depending on build configuration

La Suite Docs is a strong fit for organizations that want an editor-first documentation tool with live collaboration and structured knowledge building. It can be deployed in production using containerized setups, and scales to larger installations when paired with appropriate infrastructure.

Habitica is an open-source habit-building program that treats your life like a role-playing game. Level up as you succeed, lose HP for failures, and earn Gold to buy weapons and armor. The project emphasizes community-driven guides and help resources to support contributors.

Key Features

• Gamified task management with Habits, Dailies and To-Dos, plus XP, Gold and gear.
• Avatar customization with gear, pets and cosmetics.
• Social features including Parties, Challenges and Guilds for collaboration and accountability.
• Cross‑platform syncing and a strong open-source community contributing to the project.
• Subscriptions unlock Gems and exclusive items for extra content.
• Tech stack demonstrated in the repository includes Node.js, Vue.js, Express and MongoDB.

Use Cases

• Personal productivity and habit formation by turning tasks into RPG progress.
• Team collaboration and accountability through Parties and Guilds for shared goals.
• Learning or onboarding support via gamified task workflows and social features.

Conclusion Habitica blends task management with RPG mechanics and a vibrant open-source community; it is widely used for personal productivity and collaborative goal-tracking.

Blinko is an open-source, privacy-focused note-taking app designed for quickly capturing short “card” notes and organizing them over time. It adds AI-assisted retrieval using RAG, enabling natural-language search across your personal knowledge base while keeping data under your control.

Key Features

• Card-style note capture optimized for quick, lightweight writing
• Markdown-based notes for simple formatting and portability
• AI-enhanced retrieval using RAG for natural language querying of notes
• Self-hosted data storage emphasizing data ownership and privacy
• Web app built with a modern UI stack
• Optional multi-platform desktop experience via Tauri

Use Cases

• Personal knowledge management with fast capture of ideas and snippets
• Searching a private notes archive using natural-language queries
• Lightweight alternative to heavier note systems for daily journaling and memos

Limitations and Considerations

• AI/RAG features may require additional configuration and external model/provider choices depending on your setup

Blinko fits users who want a clean, fast note workflow with Markdown and the option to add AI-powered retrieval. It is especially suited to individuals prioritizing privacy and control while still benefiting from modern AI search.

TiddlyWiki is a self-contained personal wiki and non-linear web notebook implemented in JavaScript. It can run directly in a web browser as a single HTML file, or be deployed using Node.js for more advanced multi-user and automation scenarios.

Key Features

• Single-file wiki that can be opened and used directly in the browser
• “Tiddlers” (small pages/notes) with powerful linking and transclusion for non-linear writing
• Highly customizable UI and behavior via built-in WikiText, macros, and plugins
• Tagging, search, filtering, and flexible navigation for personal knowledge management
• Node.js-based server mode for hosting, building, and automated publishing workflows

Use Cases

• Personal knowledge management (notes, journals, research, Zettelkasten-style linking)
• Team or personal documentation and lightweight wikis
• Offline-first portable notebooks stored and shared as a single file

TiddlyWiki is well-suited for users who want a durable, hackable wiki that can live as a file or be hosted as a Node.js application. Its plugin ecosystem and deep customizability make it adaptable to many note-taking and documentation workflows.

HedgeDoc (formerly CodiMD) is an open-source, web-based Markdown editor focused on real-time collaboration. It enables teams to co-edit notes in the browser, share note links, and work together on text, diagrams, and presentations.

Key Features

• Real-time collaborative editing in the browser
• Markdown-based notes with support for diagrams and embedded content
• Presentation mode for Markdown slides
• Simple note permission controls for sharing and editing
• Revision history with the ability to review and revert changes
• Designed to run with low system requirements

Use Cases

• Team meeting notes and collaborative documentation
• Workshops, classes, and live note-taking sessions
• Creating Markdown slide decks for internal presentations

Limitations and Considerations

• HedgeDoc 2 is a rewrite and the development branch may not include all features compared to the stable 1.x releases

HedgeDoc is well-suited for groups that want a fast, link-shareable collaborative editor with Markdown-centric workflows. It combines realtime editing with practical publishing features like revisions and presentation mode for everyday knowledge sharing.

Standard Notes is a privacy-focused note-taking application that uses end-to-end encryption to protect notes and files so only you can decrypt your data. It supports cross-device sync, offline access, and a flexible editing experience for different writing and organization styles.

Key Features

• End-to-end encryption with a zero-knowledge design for notes and attached files
• Cross-platform apps and web app with sync across unlimited devices
• Offline access so you can read and edit notes without an internet connection
• Multiple editor types, including Markdown and rich text, plus support for code snippets and lists
• Self-hosting support by pointing clients to a custom sync server via configuration
• Built with a public codebase and designed for long-term, durable personal knowledge storage

Use Cases

• Private personal knowledge management for journals, records, and sensitive documents
• Secure storage of credentials, keys, and confidential notes alongside attachments
• Team members or individuals who need a consistent notes workflow across desktop and mobile

Limitations and Considerations

• Some advanced editor and productivity features are provided via extensions and may require additional configuration or a paid plan depending on the feature

Standard Notes is a strong fit for users who want straightforward note-taking with rigorous privacy guarantees and reliable multi-device access. It is especially well-suited for storing long-lived personal or professional information where confidentiality and portability matter.

TagSpaces is an offline-first, cross-platform application for organizing and managing local files using a flexible tagging system. It works without accounts or a central cloud backend by storing metadata alongside your files, keeping your data portable and private.

Key Features

• Tag files and folders using filename tags or sidecar metadata files
• Fast filtering and search, including a local index service for content search
• Built-in viewers and editors for common formats (text, Markdown, HTML, media)
• Note-taking and simple task lists stored as plain files
• Web Clipper browser extension to save web pages, screenshots, and bookmarks as local files
• Extensible architecture via custom viewers/editors (plugins)
• Optional local AI/LLM integrations (via Ollama) for summarization, tagging, and annotation

Use Cases

• Organize a personal document archive (PDFs, receipts, manuals) with consistent tags
• Build an offline personal knowledge base with notes, web clippings, and media
• Create a portable file-based workspace that can be synced with third-party tools

Limitations and Considerations

• Not optimized for working locations containing more than about 100,000 files

TagSpaces is well-suited for users who want a file-based, vendor-neutral way to manage documents, notes, and media. Its offline design and optional local AI features make it a strong choice for privacy-focused personal and small-team workflows.

SilverBullet is a programmable personal knowledge management platform that runs in the browser and stores content as Markdown pages in a “space.” It combines a clean editor with wiki-style navigation and a scripting system that can generate pages, automate workflows, and build custom functionality.

Key Features

• Markdown-first editor with live preview and outlining tools
• Wiki-style pages with links and bi-directional linked mentions
• Task management across pages
• Querying and “objects” for structured data and database-like workflows
• Lua-based scripting (Space Lua) to create commands, templates, widgets, and dynamically generated content
• Local-first Progressive Web App behavior with offline access and sync to browser storage
• Distributed as a single server binary or as a container image

Use Cases

• Personal notes and wiki-style knowledge base for research, projects, and documentation
• Task tracking embedded in notes with rollups across a workspace
• Building lightweight, custom productivity systems with scripts, templates, and queries

SilverBullet is well-suited for users who want Markdown ownership and the ability to extend their notes environment with scripting and automation. It can function as both a straightforward editor and a highly customizable knowledge platform as your needs grow.

Personal Management System (PMS) is a self-hosted web application that acts as a central hub for managing personal information. It combines concepts found in CMS/CRM-style systems to keep everyday personal data organized in one private place.

Key Features

• Modular structure with multiple built-in modules and the ability to extend with custom modules
• Todo and goals tracking, including goal progress and related payments tracking
• Notes with categories for storing structured personal information
• Contacts management for phone numbers, emails, and basic personal contact data
• Encrypted password storage with copy-to-clipboard retrieval in the frontend
• Scheduling of recurring tasks with dashboard visibility and notifications
• Personal finance tracking: payments, bills, owed money, and product price tracking
• Media and file management: images (gallery view), generic files, and video storage
• Read-only reporting based on stored data

Use Cases

• Replace scattered personal tools (notes, spreadsheets, cloud drives) with one private system
• Track household and personal finances, recurring payments, and debts
• Store and organize personal files, scans, photos, and small videos for easy retrieval

Limitations and Considerations

• The repository described as the backend only; a separate frontend is required for full usage
• Support is community-based and may be limited, as the project is maintained in the author’s spare time

PMS is best suited for individuals who want a customizable, privacy-focused personal dashboard that consolidates many day-to-day tracking and storage needs. Its module-based approach makes it practical for tailoring to personal workflows over time.

Vikunja is an open-source to-do and task management application designed to help individuals and teams organize work in projects. It provides collaborative task tracking with multiple ways to visualize and plan your workload.

Key Features

• Project-based organization with hierarchical projects and subprojects
• Task assignment and project sharing for team collaboration
• Multiple task views including list, Kanban, Gantt, and table
• Web-based UI backed by an API for integrations and automation

Use Cases

• Personal task tracking and daily planning with project structure
• Team task coordination with shared projects and assigned responsibilities
• Project planning and timeline overview using Gantt and board views

Vikunja is a flexible, privacy-friendly alternative to proprietary task managers, combining a clean UI with collaboration and planning features for a wide range of workflows.

Speakr is a personal, self-hosted web application that turns audio recordings into organized, searchable notes using AI transcription and post-processing. It supports both cloud and self-hosted ASR/LLM backends and is designed for privacy-conscious individuals and teams.

Key Features

• In-browser recording and audio file upload
• AI transcription with optional speaker diarization and audio-transcript sync
• Voice profiles via speaker embeddings when using a compatible WhisperX ASR service
• Interactive chat and semantic “inquire” mode to query recordings using natural language
• Tag-based organization with custom prompts, ASR settings, and prompt stacking
• Sharing and collaboration with granular permissions, groups, and group-scoped tags
• Retention policies and automatic deletion with tag-based protection
• REST API v1 with OpenAPI/Swagger UI
• Single Sign-On via OIDC providers

Use Cases

• Meeting and standup transcription with searchable summaries and action items
• Research, interviews, and personal voice notes exported into a knowledge base
• Team knowledge capture for architecture decisions and client calls with controlled sharing

Limitations and Considerations

• Some advanced features (voice profiles/embeddings) require a separate WhisperX ASR service and typically a GPU
• LLM-powered summaries/chat depend on configuring a compatible text model provider

Speakr combines transcription, organization, and collaboration in a single web UI, while keeping data under your control. Its tagging, sharing, and retention features make it suitable for both personal note-taking and team workflows around recorded conversations.

flatnotes is a distraction-free note-taking web app designed around a simple folder of Markdown files instead of a database. It focuses on fast capture and retrieval of notes while keeping your data portable and editable outside the app.

Key Features

• Stores notes as plain Markdown files in a flat directory (no database)
• Mobile-responsive web interface
• Raw Markdown and WYSIWYG editor modes
• Full-text search with an incrementally synced search index
• Tagging for organizing and filtering notes
• Wiki-style links between notes using double-bracket syntax
• Customizable home page and light/dark themes
• Multiple authentication modes including optional read-only mode and 2FA
• RESTful API for programmatic access

Use Cases

• Personal knowledge base where notes remain accessible as files
• Lightweight team or household notes/wiki with quick search and tagging
• Homelab note service integrated with scripts via the API

Limitations and Considerations

• Uses a flat folder model (no hierarchical notebooks/folders within the UI)
• Search relies on an index cache, which may need storage and occasional rebuilds for very large libraries

flatnotes is a good fit if you want a simple web UI for Markdown notes without lock-in, while retaining powerful search, tagging, and linking for day-to-day use.

Basic Memory is a local-first “memory layer” that lets AI assistants build and reuse long-term context across chats. It stores knowledge as human-editable Markdown files and exposes that knowledge to compatible LLM clients via the Model Context Protocol (MCP).

Key Features

• Bi-directional read/write memory: AI can create and update notes, and you can edit them with standard tools
• Local Markdown storage with semantic patterns (frontmatter, observations, relations) to form a traversable knowledge graph
• Local indexing and search backed by SQLite for fast retrieval
• MCP server integration to connect with compatible AI clients (for example desktop assistants and editors)
• Multi-project organization for separate knowledge bases
• Optional sync workflows, including real-time syncing and cloud-oriented commands

Use Cases

• Build a personal knowledge base that persists across AI conversations without repeated re-explaining
• Maintain project “working memory” for coding, research, or writing using Markdown and wiki-style linking
• Share consistent prompts, instructions, and structured notes across different AI tools while keeping content editable

Limitations and Considerations

• Effectiveness depends on maintaining consistent note structure (observations/relations) for higher-quality retrieval
• Some cross-device features may depend on optional syncing workflows rather than the core local-only setup

Basic Memory is a practical way to turn conversations into durable, structured notes that both humans and AI can navigate. By keeping the source of truth in plain text Markdown, it aims to stay interoperable with existing editors and workflows while enabling richer, reusable AI context.

NoteDiscovery is a lightweight, self-hosted knowledge base and note-taking application that stores content as plain Markdown files in folders. It focuses on fast navigation and discovery of notes with a modern web interface, while keeping data under your control.

Key Features

• Markdown editor with live preview and code syntax highlighting
• Wikilinks for connecting notes and an interactive graph view
• YAML frontmatter metadata with tag-based organization and filtering
• Templates with dynamic placeholders for creating reusable note formats
• Mermaid diagram rendering and LaTeX/MathJax equation support
• Favorites, outline (table of contents) panel, and keyboard shortcuts
• Plugin system for extending functionality
• Optional built-in password protection and a REST API
• Responsive UI with Progressive Web App (PWA) support
• Export notes as standalone HTML files

Use Cases

• Personal knowledge base or “second brain” built on local Markdown files
• Developer documentation and technical notes with code blocks, diagrams, and math
• Small team internal wiki with simple sharing and optional authentication

NoteDiscovery is a practical option for users who want a fast, Markdown-first knowledge base with linking and visualization features, without relying on proprietary storage formats. Its file-based approach also makes backups and migrations straightforward.